Drying and Calcination Drying Drying is the removal of water from the ore, using a moderate amount of heat (temperatures on the order of 100°C). Only the mechanically bound water is removed (water filling pores and cracks, or that is adhering to the particle surfaces). Chemically-bound water, such as water of

THE EFFECT OF COOLING RATE OF SLAG FROM PRIMARY COPPER PRODUCTION IN THE VALORIZATION OF COPPER IN THE FLOTATION PROCESS Aleksandar Mihajlović1, Željko Kamberović2, Marija Korać2, Milorad Gavrilovski1, Nikola Jovanović1 1Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, Serbia

116 Monaghan and Brooks Thermophysical properties of slags for process control Alumina Cap Platinum Lid Platinum Crucible Alumina Crucible Support 1 Slag cell (lid and crucible), support, and cap Materials preparation The composition of oxides measured in this study are given in Table 2. The oxide material was added to the measure­

In nature, iron, copper, lead, nickel and other metals are found in impure states called ores, often oxidized and mixed in with silicates of other metals. During smelting, when the ore is exposed to high temperatures, these impurities are separated from the molten metal and can be removed. Slag is the collection of compounds that are removed.

The specific heat of some commonly used solids is given in the table below.. For conversion of units, use the Specific heat online unit converter.. See also tabulated values of specific heat of gases, food and foodstuff, metals and semimetals, common liquids and fluids and other common substances as well as values of molar heat capacity of common organic substances and inorganic substances.

Without the need of an upstream drying system for the blast furnace slag energy and as a consequence CO 2 can be saved. In summary dry granulation of blast furnace slag allows an environmental friendly and sustainable subsequent processing for one of the last big heat …

Copper processing - Copper processing - Roasting, smelting, and converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace of either the hearth or ...

THERMAL CONDUCTIVITY AND CHARACTERISTICS OF COPPER FLASH SMELTING FLUE DUST ACCRETIONS ... In Copper Flash Smelting, flue dust can cause severe problems in the gas handling system, ... which typically consists of a heat recovery boiler and electrostatic precipitator. If the process is not operated properly, the flue dust may form accretions on ...

Slag dryer can be divided into steel slag dryer and grain slag dryer. It can be used for drying materials with high moisture and big proportion such as slag, limestone, clay, river sand, silica sand, grain slag, slurry and sludge. Features: 1. Big processing capacity, strong anti-overload capacity, high heat efficiency and low coal consumption.

Thermal conductivity is a material property that describes ability to conduct heat.Thermal conductivity can be defined as "the quantity of heat transmitted through a unit thickness of a material - in a direction normal to a surface of unit area - due to a unit temperature gradient under steady state conditions"

Dec 03, 2008· The capacity of the fluid bed dryer i am aiming for is 80tph. The aggregate is Copper Slag and due to the very abrasive nature of copper slag, high wear resistance of the dryer is a pre requisite. Could anyone advise me on the best setup for my purpose. Thanks.

Recovery and utilisation of waste heat in the slag (via dry slag granulation) and offgas streams from the smelting step was also included in the study, with the waste heat being utilised either for thermal applications or electricity generation.

(4) A post process for drying slag is a must after the water quenching. (5) The thermal energy of high temperature slag is wasted without recovery. To solve these problems, we studied the dry granulation of the molten slag by rotary cup atomizer (RCA). The molten slag was supplied to the center of RCA.

Drying shrinkage of PQC decreased with the increase in slag and the decrease in stone dust content. Abrasion resistance of concrete mixes containing slag was observed to be less as compared with that of non-slag concrete. Compressive strength of DLC decreased with the increase in copper slag …

Potential of melted slag as heat source Melted slag at 1500℃has sensible and latent heat of about 400 – 500 cal/g. If half of the heat of melted slag is to be recovered in Japan, the total heat recovery will be equivalent to about 1 Mt of coal. =0.5％of annual coal import of …

Blast furnace slag is a nonmetallic coproduct produced in the process. It consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates. The molten slag, which absorbs much of the sulfur from the charge, comprises about 20 percent by mass of iron production.

Apparatuses, systems, and methods discussed herein facilitate processing of, and thermal recovery from, material such as slag. A disk assembly is configured to process material. One or more heat exchangers are configured to extract heat that is already present in the material, heat generated during processing, or both. A thermal transfer system is configured to transfer heat away from the disk ...

Pyrometallurgy is a branch of extractive metallurgy.It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for ...